Ethanol (CH₃CH₂OH) Has Been Suggested as an Alternative Fuel Source $\Delta$

question 84

Multiple Choice

Ethanol (CH₃CH₂OH) has been suggested as an alternative fuel source. Ethanol's enthalpy of combustion is $\Delta$ H_comb = -1,368 kJ/mol, and its density is 0.789 g/mL. What is the fuel density of ethanol (kJ/mL) ?

• A) 3.75 kJ/mL
• B) 12.8 kJ/mL
• C) 1.28 kJ/mL
• D) 23.4 kJ/mL
• E) 37.5 kJ/mL

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Definitions:

Authoritarian Parenting

A restrictive, punitive parenting style in which the parent exhorts the child to follow the parent’s directions and to value hard work and effort.

Assimilation

An individual’s incorporation of new information into existing knowledge.

Conservation

In cognitive development, the understanding that an object retains its properties even when its form or appearance changes.

Qualitatively Different

A term used to describe differences that cannot be measured by numbers alone, often involving distinct categories or types rather than amounts or degrees.